Glass-press



(No Mddl.

, I 2 Sheets-Sheet 1. L. FISCHER.

GLASS PRESS.

PatentedApr. 29, 1884 Hm I (No Model.) 2 Sheets-Sheet 2.

FISCHER.

GLASS PRESS. No. 297,590. Patented Apr. 29, 1884.

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LOUIS FISCHER, or rrrrrsnune, PENNSYLVANIA.

GLASS-PRESS.

SPECIFICATION forming part of Letters Patent No. 297,590, dated April 29, 1884.

Application filed December 28, 1883. (No model.)

To all whom it may concern:

Be it known that I, LOUIS FISCHER, a citizen of the United States, residing at Pittsburg, county of Allegheny, State of Pennsylvania, have invented or discovered a new and useful Improvement'in Glass-Presses; and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which-like letters indicating like parts- Figure l is a rear elevation of my improved glass-press. Fig. 2 is a side elevation of the same. V p

My invention relates to an improvement in presses used in manufacturing glass articles, which are formed by inclo'sing the glass within a suitable mold, and then forcing the glass into the parts of the mold by a reciprocating. plunger.

The object of my invention is to so construct a press that the parts immediately connected to the plunger will move in lines parallel-with the movement of the plunger; and, in general terms, my invention consists in the construction and combination of parts, all as more fully hereinafter described and claimed.

A is the bed, mounted by means of standards a on wheels I). ()n this bed A are secured two hollow pillars or standards, 0, which are braced and held in proper relation to each other by the cross-piece 0. Through these pillars c are passed the rods d d, to the upper ends of which is secured a crosshead, e, and the lower ends of these rods are suitably secured to a shaft, f. Through the cross-head e is passed the threaded rod whichis adjustably held therein by the nuts 9 g. Thisv rod 9 passes down through an opening, 0 in the cross-piece c, and is secured at its lower end to the platen D. This platen D is. providedat each side with eyes h, through which pass the exteriorly-threaded sleeves h, on which are screwed the nuts If, which force and hold the eyes'h of the platen up against a shoulder, h formed on the sleeves. These sleeves are adapted to slide up and down the standards 0, and guide the platen D, on the under side of which is secured the plunger 1?.

Just above the platen D,Isecureto the threaded rod 9 a plate, It, by means of the nuts ll, and in the corners of the plate 70 are movably secured the rods m, and on the lower ends of these rods are yieldingly supported the spring-plate n, and on the rods m, between the plates k and n, are placed the springs m. I secure to said spring-plate the upwardly-projected pins 0, which pass through holes in the platen D, and guide and steady said plate in its movements.

To a lug, p, on the under side of the table A, is pivoted one arm, q, of a toggle-joint, the other arm, q, being secured to a sleeve, 9 which surrounds the shaft f, connecting the lower end of the rods d.

To the pivot connecting the arms (1 g of the toggle-joint is connected one end of the link 1', the other end of said link being attached to the arm 8 of the rock-shaft s, on one end of which is secured the lever 8 To an arm, o, depending from the table A, is pivoted a lever, o, forked at one end to bear against the sleeve q, surrounding the shaft f,

the other end of the lever being provided with a counter-balance, w, of sufficient weight to raise and support the rods (1 and their connections when the lever s is released.

At the rear end of the table I provide two adjustable stops, as w, for the purpose of properly locating the mold under the plunger.

The operation of my press is as follows: A suitable mold having been prepared, is placed on the table A. Theglass is then placed therein, and the mold closed and pushed into po sition under the plunger and against the stops :0. The operator then pulls down the lever 8', thereby straightening the toggle-j oint, pulling down the rods d. As the rods 61 pull down the screw-rod g, the presser-platen first strikes and bears upon the mold, so as to firmly hold the parts thereof together. As the rod 9 'continues to descend, the springs m yield, the plate 70 sliding down the rods d, and the platen D sliding down the pins 0, and the plunger 1? enters the mold and spreads the glass therein over the interior surface of the mold and around the plunger. On the release of the lever 8 the weight 10 causes the plunger, through its connections to rise; but the plate a will continue to bear upon the mold until the plungeris entirely withdrawn.

It will be noticed that the rods cl, which carry the plunger and plate, always move in a vertical line, and consequently there will be no ism for reciprocating the rods, substantially as liability of tipping or pressing unequally upon the top of the mold, as is the case in the presses 110w in use, in which the cross-head and table are connected by a toggle-joint, the cross-head being depressed by forcing the links of the toggle-joint out of line. Any other suitable mechanism may be employed to operate the rods, and I therefore do not wish to limit my self thereto.

I claim herein as my invention-' 1. In a press, the table A, provided with hollow standards, the rods d, located within said standards, and the plunger 1, in combination with mechanism for reciprocating the rods, substantially as set forth.

2. In a press, the table A, having suitable hollow standards, the rods located within said standards, and the platen D, carrying the plunger, and having the sleeves ll, adapted to slide on the standards, in combination with mechanset forth.

3. In a press, the table A, having hollow standards, the rods (1, locatedwithin said stand- 25 ards, and the plunger I, in combination with the toggle-joint g 1 and mechanism for opening and elosin g said toggle-joint, substantially as set forth.

4. In a glass-press, the toggle-joint g y, seo cured at one end to the table A, or a fixed part thereof, the other end being secured to the rods (1 below the table, in combination with the lever s and the counter-weight, substantially as set forth.

In testimony whereof I have hereunto set my hand.

LOUIS FISCHER.

Vitnesses: R. H. WnI'r'rLnsnY, O. M. CLARKE. 

